Frank (whale)

Frank is a cameo character seen only in the episodes "Ripped Pants" and "You Don't Know Sponge". He is the whale who was buried in the sand and forgotten, and also hears Patrick's imitation of a blue whale. He is shown naked in "Ripped Pants" and wears a green coat with yellow buttons and a brown hat and carrying a briefcase in "You Don't Know Sponge". He is walking alongside an unnamed beige fish. He is a blue whale with dark blue and gray skin. When Frank hears the noise, he thinks it's his ex-wife Martha calling. Until the other fish assures him that Martha is no good for him.